NSN 4510-01-022-4261 · NIIN 010224261 · Part number KR0-2B2
R G Rollin Co · FSC 4510 — Plumbing Fixtures and Accessories · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 54752
Government record, cited
NSN 4510-01-022-4261 — this item is cataloged by the U.S. Government under National Stock Number 4510-01-022-4261. Manufacturer of record part number: KR0-2B2.
Also searched as4510-01-022-4261 ·
4510010224261 ·
NIIN 010224261 ·
01-022-4261 ·
FSC 4510 Plumbing Fixtures and Accessories · CAGE 54752 · KR0-2B2
General Characteristics Item Description: BRONZE; 4.574 IN. OD OF TOP; 3.965 IN. OD OF BODY; W/HEX WRENCHING FEATURE,2.965 IN. W ACROSS FLATS,HAS INTERNAL THD 2.000-11-1/2 NPT,AND CONTAINS A PERFERATED PLATE INSIDE BODY IN
1 manufacturer part number on file
Manufacturer of record: R G Rollin Co
Identification
NSN: 4510-01-022-4261
NIIN: 010224261
FSC: 4510 — Plumbing Fixtures and Accessories
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: KR0-2B2
Manufacturer: R G Rollin Co
General Description
The Vacuum Breaker,flush Valve, cataloged under National Stock Number 4510-01-022-4261, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is R G Rollin Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4510-01-022-4261
Primary Part Number
KR0-2B2
Item Name
Vacuum Breaker,flush Valve
FSC / FSG
4510 / 45 — Plumbing Fixtures and Accessories
Manufacturer
R G Rollin Co
Status
ACTIVE
General Characteristics Item Description
BRONZE; 4.574 IN. OD OF TOP; 3.965 IN. OD OF BODY; W/HEX WRENCHING FEATURE,2.965 IN. W ACROSS FLATS,HAS INTERNAL THD 2.000-11-1/2 NPT,AND CONTAINS A PERFERATED PLATE INSIDE BODY IN
Other items in FSC 4510 — Plumbing Fixtures and Accessories
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4510-00-001-7828
SHOWER HEAD
4510-00-003-5231
FLUSH CONNECTION,URINAL-WATER CL
4510-00-004-8263
4510-00-004-8263 · Item name not on file
4510-00-004-8383
FAUCET,SINGLE
4510-00-005-2321
DRAIN,SINK
4510-00-005-5021
PARTS KIT,WATER MIXING VALVE
4510-00-006-0067
4510-00-006-0067 · Item name not on file
4510-00-006-5939
DISK,INDEX
Frequently Asked Questions
What is NSN 4510-01-022-4261?
NSN 4510-01-022-4261 is a Vacuum Breaker,flush Valve, manufactured by R G Rollin Co, classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.
What part numbers are listed for NSN 4510-01-022-4261?
NSN 4510-01-022-4261 has 1 manufacturer part number on file: KR0-2B2 (R G Rollin Co).
What are the specifications of KR0-2B2?
Key specifications for KR0-2B2: General Characteristics Item Description: BRONZE; 4.574 IN. OD OF TOP; 3.965 IN. OD OF BODY; W/HEX WRENCHING FEATURE,2.965 IN. W ACROSS FLATS,HAS INTERNAL THD 2.000-11-1/2 NPT,AND CONTAINS A PERFERATED PLATE INSIDE BODY IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4510-01-022-4261 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.